4 Comments on “How to Insulate Under Floors in a Basement or Crawlspace”

I want to put insulation on the floor under the house I watched your video and want to know if it would be alright to do what you did only I would like to put foil bubble wrap on last to hold the insulation up. is this ok or not please let me know. Thanks carl

installing roll insulation in ceiling of basement which is under floors of living space my basement is heated but a smaller amount than up in living space (usually 66-68 upstairs and 58-60 at the same time in basement) my question is about the kraft paper facing, I think it should face the basement because of any moisture in basement. It has concrete floors (not covered with carpet or anything other flooring)it’s 22 degrees outside and the hardwood floors upstairs are pretty cool. Before the floors in the living space were warmer because I was heating with baseboard heaters in each room but this year the electric company raised the price 2 cents a kwh and I got a $300.00 electric bill so now I’ve turned on the natural gas furnace.

Will isolating the basement by insulating the ceiling cause the basement to become colder? If I have to now open the heat run in the basement that I currently keep closed, that seems like it will offset any savings I get in the living area. Not sure.

We want to hear from you! In addition to posting comments on articles and videos, you can also send your comments and questions to us on our contact page or at (800) 946-4420. While we can't answer them all, we may use your question on our Today's Homeowner radio or TV show, or online at todayshomeowner.com.

Name (required)

Email (will not be published) (required)

Tips for Today's Homeowner

Sign up for Danny's Monthly Newsletter and stay up to date on tips and tricks for the home.